• All lasers or laser systems (except Class 1) must have appropriate warning labels affixed to a conspicuous place on both the housing and the control panel (if separated by more than 2 meters).
  • Class 2 lasers and laser systems, “Laser Radiation – Do Not Stare into Beam”
  • Class 3R lasers and laser systems (accessible irradiance does not exceed MPE based upon 0.25 second exposure for wavelengths between 0.4 and 0.7 um), “Laser Radiation – Do Not Stare into Beam or View Directly with Optical Instruments”
  • All other Class 3a lasers or laser systems, “Laser Radiation – Avoid Direct Eye Exposure”
  • Class 3b lasers or laser systems, “Laser Radiation – Avoid Direct Exposure to Beam”
  • Class 4 lasers or laser systems, “Laser Radiation – Avoid Eye or Skin Exposure to Direct or Scattered Radiation”